[Report of the Medical Officer of Health for Surbiton] page 53

Surbiton 1958

[Report of the Medical Officer of Health for Surbiton]

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The following is a summary of the several treatments carried out since disinfestation of Sewers coinmonced in 1948;-

Date	Description	No. of Manholes Pre-baited.	Takes of Pre-bait	No. of Manholes Poison baited.	Takes of Poison bait.
April 1948	1 at Initial treatment	218	77	77	31
July 1948	2nd „ „	77	14	10	8
February 1 949	1st Maintenance treatment	80	49	49	18
July 1949	2nd „ „	71	20	24	7
March 1950	3rd „ „	58	41	41	21
July 1950	4th „ „	41	20	22	13
Februar.v 1 951	5 th „ „	57	17	17	15
August 1951	Otll „ „	35	14	14	6
February 1 952	7 th „ „	69	36	36	15
July 1952	8 th „ „	58	14	14	4
February 1 953	9 th „ „	54	13	13	8
February 1 954	10th	47	1 6	16	8
August 1 954	11th „ „	16	7	7	5
December 1955	12th „ „	21	18	18	14
December 1956	13th „ „	61	52	52	38
May 1957	14tn „ „	49	15	13	8
May 1 957	14th „ „	—	—	4+	2
November 1957	15th „ „	36	13	13	9
November 1 957	15 th „ „	—	—	18 +	9
April/May 1958	16th „	—	—	28+	3
December 1 958	17th „ „	—	—	49+	26

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Direct poisoning with Warfarin.
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